<form method="post" action="<?=base_url()?>ckeditor/getEditor">
<textarea name="content" id="content" ><p>Example data</p></textarea>
<?php echo display_ckeditor($ckeditor); ?>

<textarea name="content_2" id="content_2" ><p>Example data</p></textarea>
<?php echo display_ckeditor($ckeditor_2); ?>
</textarea>
<input type="submit" value="send">
</form>